Edward brick



(No Model.)

, E. BRICK, PIGKER STAFF GHEUK FOR LOGMS.

No. 416,665. PatentedDec. s, 1889.

Wrt E55E5 VB in I walk/ V UNITED STATES PATENT OFFICE.

EDWARD BRICK, OF LOWELL, MASSACHUSETTS, ASSIGNOR OF TWO-THIRDS TO EDWARDW. THOMAS AND ORANGE H. STAFFORD, BOTH OF SAME PLACE.

PlCKER-STAFF CHECK FOR LOOMS.

' I SPECIFICATION forming part of Letters Patent No. 416,665, datedDecember 3, 18 89.

Application filed my 7, 1889. Serial No. 273,159. (No model.)

. provided'with the picker-staff, slot of the picker-staff, a part ofthe lay-staff, the Stearns parallel motion, and my improvement; Fig. 2,a front elevation of the lower part of the picker-staff and of the otherparts shown in the lower part of Fig.1, the picker-staff be ingrepresented as moved outward; Fig. 3, an elevation of the inner side ofthe parts shown in Fig. 2; Fig-24, an isometric view of the-outerportion of thecheck-rod, buffer-arm,

and buffer; Fig. 5,. amisometric view of the outerportion of thecheck-rod and louderarm, omitting the buffer; Fig. 6, an isometric 'viewof the rear portion of' the buffer-arm;

Fig. 7, an isometric view of the buffer detached and flat; Fig. 8, asimilar view of the buffer, except that its end portions are representedas bent into the positions they occupy when attached to the buffer-arm.Figs. 9 and 10 are vertical transverse sections of the buffor andbuffer-arm on the lines w 00 and y y, respectively, in Fig. 4.

v The lay-shaft A, rocker-bed a, rocker a, roll a and strap a of theStearns parallel motion, above referred to, the picker-stafi P, and thelay-beam A, provided with the pickerstaff slot at, are all of the usualconstruction and operation.

To the rocker-bed a, l attach a bracket B, either by casting the same inone piece with said rocker-bed in the case of new work, as shown inFigs. 2 and 3, or by means of a clamp b, with which the lower end ofsaid bracket may be provided, as shown in Fig. 1, where the lower partof said bracket is form ed in two parts, one of which I) is a removablepiece secured by a bolt 12 to the. main part of said bracket, the lowerpart ofthe body of the bracket and the piece 1) grasping oppo: sitesides of a hanger a which supports the shaft on, on which the strapmolla turns. The upper part of the bracket B is provided with vertical ears(9 19 through holes in which slides the check-rod C. The check-rod isarranged parallel with the lay-shaft A, andis provided withabackwardly-extending bufierarm 0, having a convex or semi-cylindricalinner face arranged outside of the picker-staff. Aspiral spring Dsurrounds the check-rod between the ears b b and is compressed betweenthe outer ear 5 and an adjustable collar a, secured on said check-rod bya set-screw c which turns in said collar and thrusts against said'rod.The compression of the spring D may be varied by the adjustment of thecollar 0' on the check-rod. Another collar 0 adjustable by means of aset-screw 0 turning in said last-named collar against said check-rod,limits the inward motion of the check-rod by striking against the ear bThe picker-staff when moved outward strikes against the buffer-arm 0,moving the checkand thereby diminishing the shock of the picker-staffand graduallystopping the same. To diminish the shock of thepicker-staif against the buffer-arm still further and to diminish thewear of these parts and the noise occasioned by their meeting, I providethe 7 5 rod outward and compressing the spring D,-

buffer-arm with a buffer E, of the form shown.

in Fig. 7, the same being a piece of leather or other similar sheetmaterial cut in the form shownthat is to say, provided with a dovetail eat each end, these dovetails being inserted in vertical slots 0 in thebuffer-arm, these slots being connected by another slot 0", into whichthe dovetails are first inserted and along which they are moved into theslot 0 being then twisted into place, so that the buffer when inposition is of the shape shown,

in Fig. 4.

The position of the picker-staff check on the rocker-bed enables averystrong and durable spring to be used, as when there placed thecompression of the spring is very slight in amount and the leverage ofthe shuttle on 'the picker-stick is very great, whereas if the checkwere arranged on the lay-beam the spring, if strong enough to act as acheck, would otter so much and such sudden resistance to the shuttle asto cause the-filling to be knocked off-that is, would cause the cop tobe broken-and if the resist anee of the spring were reduced sufficientlyto to avoid the knocking off of the filling the device would not beeifectual as a check, and the shuttle would need to be checked andprevented from bounding out of the shuttlebox by tightening up thebinder-spring,

I 5 which-w-ould make itmore difficult for;the'

shuttle to leave the box as well as to enter it and require more powerto throw the shuttle. The position of the spring so near the fulcrum-ofthe pickenstaff and the slight amount 20.01: compressionthereof requiredmakes the --wear of thespring very slight,- and'the-slight projectionofthe device beyond the picker- --staff, which is merely the thicknessof the arm-c,'.-isnot sufficient to exposethe device '2 5" to injuryfrom passing tr-ucks such as are commonly used in cotton-factoriesand-which would. frequently strike the device if it projected beyond therocker-bed.

1 I claim as my invention-- 1. "The pickenstafiE-checkherein described,

consisting-of the combination of the-rockerbed provided with a bracket,cast or rigidly secured thereon, and having ears, the checkrod-slidingin said-ears, and provided at its -outer end, outside of said ears, withalati-erally-extending arm arranged at about'right angles to said rod,and a spring surrounding said 'rod and compressed between 'acollar 'withwhich said rod isprovided and oneof 4o-said ears, as and for the purposespecified.

-2.' Thecombination of the rocker-bed, a bracket cast or rigidly securedthereon and having ears, the check-rodsliding in saidears :and providedat its outer end, outside of said 4 5- ears,= with a laterally-extendingarm arranged --at about right-angles to sa-id-rod, a buffer, of .leatheror other suitable material, secured to said arm,.and a springsurrounding said rod angles to said rod, and having vertical slots,

and a horizontal slot connecting said vertical slots, a butter, ofleather or other suitable sheet material, having dovetail ends, adapted'to be placed in said horizontal slot and to be moved therefrom intosaid vertical slots and to be retained therein, and a springsurroundingsaidarod and compressed. between a collar withwhich said rodis provided and one of said ears, as and for the purpose specified. 4.The combination of the bracket adapted to be secured tothe rocker-bedandhaving ears, the check-rodsliding in said. ears and provided withan'arm arranged at about right angles to said rod-,andprovided with abuffer,

aspringsurrounding said rod,and a collar, adj ustableon saidrod, tocompress said spring between said collar and one of said. ears, to

vary the compression of :said spring, as landfor thepurpose specified.5. "Thecombination of the bracket adapted to be-secured-qto therocker-bed and having ears, the check-rod sliding in said ears and Iprovided with an arm arrangedat about Tightangles tosaid 1'od,'a springsurround 8o ing said-rod-and compressed between a collarwitlr'which-saidrod is provided and one of said -ears,--and another-collar arranged on-said check-rodand adjustable thereon betweensaidfirst-named collar andthe other onegof said ears, to 'limitthe returnmotion of said rodand tovary the amount of-said 'motion, as and for the purpose specified.

In-witnesswhereof I have signed thisspeci- EDWARD BRICK.

"Witnesses:

ALBERT M. MOORE, EDWARD W. THOMAS.

